#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
using namespace std;
class A
{
public:
	/*A()
	{
		_a = 0;
	}*/


private:
	int _a;
};

class Date
{
public:
	/*Date(int year = 1, int month = 1, int day = 1)
	{
		_year = year;
		_month = month;
		_day = day;
	}*/
	void Print()
	{
		cout << _year << "--" << _month << "--" << _day  << endl;
	}
private:
	int _year;
	int _month;
	int _day;

	A _aa;
};

int main()
{
	Date d1;
	d1.Print();

	return 0;
	
}